Tzvetan Vassilev, MD
NPI 1619980893ActiveIndividual· Internal Medicine, Infectious Disease· Lawrenceville, GA
Internal Medicine, Infectious Disease (MD) with Infectious Disease Consultants PC, practicing in Lawrenceville, Georgia. Their prescriptions cost Medicare Part D more than their services did: $2,072,202 for 1,240 claims, against $287,495 paid for services in 2024. Viiv Healthcare Company was the largest of 18 companies reporting payments in 2025, $1,855 in all, mostly food and beverage. Lists Northside Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1619980893 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 15, 2006 |
| Last updated in NPPES | Jul 23, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 049952 | GA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Infectious Disease (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 555 |
|---|---|
| Services billed | 8,642 across 35 procedure codes |
| Paid by Medicare | $287,495 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,240 · 1,508 30-day fills |
|---|---|
| Patients | 257 |
| Total drug cost | $2,072,202 |
| Generic share | 60% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Infectious Disease |
| Telehealth | Offers telehealth |
Medical group
- Infectious Disease Consultants PCSuwanee, GA · 10 clinicians
Hospital affiliations
- Northside HospitalAtlanta, GA
- Northside Hospital DuluthDuluth, GA
- Northside Hospital GwinnettLawrenceville, GA
- Piedmont Athens Regional Medical CenterAthens, GA
- Piedmont Eastside Medical CenterSnellville, GA
Other facilities
- Centerwell Home HealthHome health agency · Kennesaw, GA
- Central Home Health Care, An Amedisys CompanyHome health agency · Tucker, GA
Industry payments (Open Payments)
- 2025$1,855 · 87 payments from 18 companies
- 2024$1,448 · 68 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $300.62 | 17 |
| Paratek Pharmaceuticals, Inc. | $258.80 | 11 |
| Gilead Sciences, Inc. | $221.40 | 9 |
| Melinta Therapeutics, LLC | $178.51 | 16 |
| Merck Sharp & Dohme LLC | $164.69 | 7 |
What the 2025 payments were for
- Food and Beverage$1,855 · 87 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Infectious Disease providers in Lawrenceville
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All Internal Medicine, Infectious Disease providers in Georgia →